"LIMP MODE"
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Joined: May 2011
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"LIMP MODE"
The CEL on my 2004 Explorer 4.0L V6 SOHC came on and was missing. Hed auto parts store run check... said O2 sensor and cyl 1 and 2 were misfiring.. which I think it would b because the O2 sensors bad. So i changed the sensor, was running great... I disconnected the battery to reset the computer, hooked it back up and freaking thing goes into "limp mode". I checked all the fuses, did a rest on the fuel pump, on hooked the battery and the reconnected, no changes.... Anyone have an idea??? Remeber after I changed the sensor was runnign great until DX the battery????
Cargo Master
Joined: Aug 2003
Posts: 3,263
Likes: 92
From: BC Canada
The O2 code probably came on because of the miss fires on the cylinders... you cannot take the word of a non trained, misinformed parts jockey.....you realy need the services of a proper OBDII scanner with live data, instead of a code reader..
Time to pull all your sparks and check the condition of the engine (colour of tips).. Philip
Time to pull all your sparks and check the condition of the engine (colour of tips).. Philip
Cargo Master
Joined: Aug 2003
Posts: 3,263
Likes: 92
From: BC Canada
I was referring to condition of tune....cant have good burn to satisfy O2 if the plugs are not firing properly...... Philip
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